Apparatus for converting motion



(Modem T. SARGENT,

APPARATUS FOR CONVERTING MOT-ION.

Patented Dec. 12. 1882.

I I l l lllll H H W INVENTOR:

7WA0/V BY ATTQRNEYS.

WITNESSES: fi/e .UNITED STATES PATENT OEEIcE.

THEOPHILUS SARGENT, OF HAL'LOWELL, MAINE.

APPARATUS FOR CONVERTING MOTION.

SPECIFICATION forming part of Letters Patent No. 268,942, dated December 12, 1882.

Application filed September 8, 1882. (ModeL) To all whom it may concern:

Be it known that I, THEOPHILUS SARGENI, of Hallowell, in the county of Kennebec and State of Maine, have invented a new and Improved Apparatus for Converting Motion, of which the following is a fu!l, clear, and exact description.

This invention relates to the lever contrivance for producing rotary motion by means of a couple of toothed segments on the lever working loose pinions on the shaft, which alternately gear with it by ratchets and pawls, one" going forward and turning the shaft, while the other is going backward to the starting-point; andthe invention consists ofa stopping and reversing attachment thereto, as hereinafter fully described.

Reference is to be had to the accom panying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional elevation of my improved machine. Fig. 2 is a plan view. Figs. 3 and 4 are details, and Fig. 5 is a modification of a part of the same.

The working-lever a, to which the power is applied, carries a toothed segment, I), at one side of the shaft 0, gearing with a pinion, d, thereon. It also carries a toothed segment, 6, at the opposite side of said shaft, gearing with a pinion, f, on the shaft; and-these pinions carry pawls g, which alternately act on the ratchets h, keyed to the shaft, so as to drive in the same direction on the shaft, and thus produce continuous rotary motion of the shaft and any transmitting or other wheel, 1',

thereon. In order to effect stoppage of the shaft 0 while the lever continues in motion, I propose to employsleevesj to slide under the pawls g and hold them out of contact with the the other pawls being disconnected. I propose to so arrange the sleeves j and 11 with respect to their ratchets and pawls that when the lever l is in the middle position the'pawls of both sets of ratchets will be disconnected, and they will be respectively connected when the lever is set in the extreme positions of its range. Thus it will be seen that I have provided asimple contrivance fbrstopping the shaft without stopping the workinglever, which will be found useful in many cases, and likewise will reverse the motion at will for any purpose requiring it.

The pawls'g and n are provided upon their outer sides, or the sides toward the sleeves j and p, with beveled flanges q, as shown in Fig.4, to allow the said sleeves to slip easily beneath them to disengage them from the ratchets 0 and h.

In Fig. 5 is shown a modification ofthe connecting-arms m and their connection with the sleeves j andp. In this case the end ofthe arm m forms a clutch, which is attached to the sleeve at m.

I am aware that it is not new to transmit motion from a rock-shaft to a rotary shaft by a double segmental rack mounted on the rock-shaft and straddling the rotary shaft, and two cog-wheels connected by ratchets and pawls with the rotary shaft; but

What I do claim as new and of my invention is I 1. In a motion-converting device, the combination, with the pawls and ratchets, of sliding sleeves adapted to disconnect said pawls from. the ratchets and hold them off, as described.

2. The combiuation, with a lever, l, of the bar k, and the sliding sleeves connected by bars m, whereby the ratchets may be shifted, as described.

3. The combination, with the shaft 0, carrying pinions and ratchets, of the sleeves j 1), arranged with respect to the ratchets and pawls, as described, whereby both sets of ratchets and pawls will be disconnected when the lever 1 is in a median position and one set when the lever is moved to either side, as described.

THEOPHILUS SARGENT.

Witnesses:

JAS. ATKINS, J r., O. B. SARGENTL 

